cleft (subs.) Copy link Outline 1. fissūra (of such a c. as might be made with a sharp tool)2. hĭātus, ūs (a deep, yawning c.)3. rīma4. chasma, ătis, n. (of the apparent c. in the sky from which lightnings issue) • cleft (subs.): 1. fissūra (of such a c. as might be made with a sharp tool): Col.: Plin. 2. hĭātus, ūs (a deep, yawning c.): v. chasm. 3. rīma: v. chink. 4. chasma, ătis, n. (of the apparent c. in the sky from which lightnings issue): Plin.: Sen. Phr.: to open in c.s, fătisco (v. FISSURE): dĕhisco (v. to gape): etc.